Notable changes are:
* Fixed QUARTILE.
* Fixed MATCH for types -1 and +1.
* Overhaul cell structure to cleanup temp formats, improve spans.
* Improve array formula entry, editing, and xml-io.
* Share formulas persisted using xml.
* Add auto-sum
* Improve versioning.
* Decrease memory usage.
* Accelerated intersheet dependencies
* Number theory functions. (In new plugin.)
* Stf-exporter
* Bug-fix stf importer.
* Updated: da (Keld and Kenneth), de (Karl), en_GB (Robert), es
(Pablo), no (Kjartan), ru (Valek), uk (Yuri), and more.